Keystones — Lintel
Five GCSE retrieval questions · 2 March 2021 · mathsvault.uk/keystones
-
1. Number Converting to standard form
0.0022
Answer: 2.2 × 10^-3 -
2. Algebra Factorising monic quadratics
Factorise: x² - 10x + 24
Answer: (x - 6)(x - 4) -
3. Geometry SOHCAHTOA — missing length
Adjacent = 22cm, angle = 31°. Find opposite
Answer: 13.2cm -
4. Ratio Mixed ratio problems
Simplify the ratio 6m:600cm
Answer: 1:100 -
5. Statistics Mean
Calculate the mean of: 50, 11, 45, 36, 7, 40, 10
Answer: 28.4